speissegger



s. L. SPEISSEGGER.

Brick Press.

No. 8,780. j Patepted March 2, 1852.

. oii

'IIIIIIIIIIIIIIIIIII IINETED STATES PATENT UFFICE;

s. L. SPEISSEGGER, or SAVANNAH, GEORGIA.

BRICK-MACHINE.

Specification of Letters Patent No. 8,780, dated March 2,1852.

T 0 at? whom. it may concern:

Be it known that I, S. L. Srnissneenn, of Savannah, inthe county of Chatham and State of Georgia, have invented. certain new and useful. Improvements in Presses for Making Bricks; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming part of this specification, in which' Figure 1, is a longitudinal section. Fig. 2,

ing table having a reciprocating motion, and

so operated that while the bricks are being formed in one box or set of molds, lifting cams are made to relieve the pressed bricks from the other set and time allowed to remove the bricks also to refill the several molds.

To enable others skilled in the art to make and use my invention I will proceed to describe its construction and operation.

A, is the bed of the press and B, B, B, a vertical frame attached to it.

C, is a cylinder, to the lower end of which steam may be admitted and which is seated on cross ties D, D, that have a fixed top pressing plate E, secured to them.

F, is a piston-working in the cylinder 0, on the vertical arm or red of which are connecting rods G, G, for operating cranks or levers H, H, H, H, having their fulcrums or bearings in cross pieces secured to tion along the bed A, sliding in grooves a, (6,

along its side. In the molds b, b, b, b, are

followers or pistons 0, 0, c, c,working vertically within them and connected by rods (Z, (Z, (Z, (Z, to lifting plates or platforms L, L, having guldes e, c, c, 6, working through flanges on the mold boxes to steady; their motion. a

M M and M M are cams or eccentrics secured to shafts 7, f, f, f, working, through the bed, by levers, g, g, g, g, to liftthe plates L, L, each one alternately as it, with its mold box, arrives over them.

N,"1s a platen or pressing plate operated by the rods I, I, I, I, to which it is attached and which by its upward motion lifts the plates L, L, as they (each alternately) are brought over it.

The operation in further description, is as follows. The clay being well pulverized. is fed by hopper or otherwise into the molds '7), Z), 5, Z), of either box J J as it arrives at the end of the bed the cams or eccentrics M M or B M being then so positioned as toadmit of the plates L, L, (either one) being down and; the pistons or followersat the bottom ofthe molds, when a striker may be used for leveling or clearing off the surplus clay from the top of the molds. The

table is then made to move and the box of molds thus filled brought under the top fixed pressing plate E, when steam is admitted under the piston F, positioned at the ex tremity of its bottom stroke which in rising works upward the rods I, I, I, I, and with them the platen N, pressing up the plates L, L, (either one alternately) and the followers or pistons which will squeeze or press the clay in the molds against the lower surface of the plate E. The pressure it will be seen by the motion of the cranks H, H, H, H, is less and the movement of the followers quicker at its commencement than at the close when the motion of the followers is slower in proportion to the travel of the steam piston and hence the pressure greatest at the finishing point when required. During this formation of brick in one box of molds, the molds of the other box have been filled with pulverized clay as described, and the table is then made to travel so that the molds containing the loose clay will be brought under the top pressing plate and the box with molds containing the formed bricks brought over its respective cams M M or M M which being slightly turned by means of the handles secured to their shafts will work up the plates L, L, (either one) and plungers attached, causing the bricks to be thrown out from the molds for clearing off, when by reversin the motion of the cams, the plungers and plate to which they are connected will drop and leave the molds ready for refilling. The same operation alternately taking place with either boX of molds and the steam piston F, falling by its own weight or otherwise for a fresh action during the travel of the table or mold boxes J J The pressure given to the bricks may be varied by increasing or diminishing the pressure of steam used and the thickness of the bricks altered by changing the length of the followers or the rods connecting them to the plates L, L. The table formed by the union of the two mold boxes J J may be worked backward and forward through rack and pinion worked by the motion of the steam piston as usual to planing machine tables, or in any for the formation and delivery of brick, as

substantially set forth.

SAML. L. SPEISSEGGER.

Witnesses:

HENRY WILLIAMS, GEO. B. MITCHELL. 

